CN106585378A - Vehicle speed limiting system and method - Google Patents
Vehicle speed limiting system and method Download PDFInfo
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- CN106585378A CN106585378A CN201610986443.1A CN201610986443A CN106585378A CN 106585378 A CN106585378 A CN 106585378A CN 201610986443 A CN201610986443 A CN 201610986443A CN 106585378 A CN106585378 A CN 106585378A
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- speed
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K31/02—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator including electrically actuated servomechanism including an electric control system or a servomechanism in which the vehicle velocity affecting element is actuated electrically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K31/00—Vehicle fittings, acting on a single sub-unit only, for automatically controlling vehicle speed, i.e. preventing speed from exceeding an arbitrarily established velocity or maintaining speed at a particular velocity, as selected by the vehicle operator
- B60K2031/0091—Speed limiters or speed cutters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
- B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
- B60W50/08—Interaction between the driver and the control system
- B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
- B60W2050/146—Display means
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Human Computer Interaction (AREA)
- Instrument Panels (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
The invention provides a vehicle speed limiting system and method. The vehicle speed limiting system can comprise an electronic body stabilizing system, a combined instrument system, an engine management system and an engine, which are connected with each other in sequence in a closed loop. After receiving a vehicle speed setting signal, the combined instrument system sets and displays a target limited vehicle speed on a human-computer interface and transmits the target limited vehicle speed to the engine management system; after an instrument indicated vehicle speed is calculated according to an actual vehicle speed transmitted by the electronic body stabilizing system during the running of a vehicle, the instrument indicated vehicle speed is transmitted to the engine management system; the engine management system calculates the difference value between the instrument indicated vehicle speed and the target limited vehicle speed; and if the difference value is a negative number, the engine management system responds to the opening of an accelerator pedal; and if the difference value is a positive number, the the engine management system transmits a fuel-injection quantity closed-loop control signal to the engine. As the target limited vehicle speed is set by the human-computer interface and the vehicle speed limitation is realized through difference value closed-loop calculation, the invention is advantaged in that double-way operation functions of a power system and human-computer interaction are obtained and the driving safety is enhanced.
Description
Technical field
The present invention relates to the technical field of electronic apparatus, especially with regard to a kind of Speed limiting system and method.
Background technology
Driver easily produces mental fatigue in prolonged driving procedure, and distraction and driving fatigue often make
Driver treads in too deep and causes speed to exceed the speed limit in unconsciously throttle, and for driver, speed hypervelocity not only brings super
The trouble of fast penalty note, while there is also driving safety hidden danger.
However, existing speed ways to restrain is predominantly by the mechanical system of restriction gas pedal aperture, therefore, drive
Member can produce machinery when pedal is stepped on the throttle and hinder sense, and machinery hinders LC easily to make driver produce the reason of mechanical breakdown
Solution, so as to cause the utilization rate of speed limiting function relatively low, the suitability is poor, it is impossible to the real safety issue for solving to drive.
The content of the invention
It is an object of the invention to provide a kind of Speed limiting system and method, it is possible to resolve the machinery of speed limit process hinders sense
Problem simultaneously realizes intelligent speed limit.
The present invention provides a kind of Speed limiting system, including the electronics VSC, combination instrument that are sequentially connected in a closed loop mode
Table system, engine management system and electromotor, the combination instrument system includes man machine interface；
The combination instrument system receives speed and arranges after signal, limits in the man machine interface setting and display target
Speed, and the target restricted speed is sent to into the engine management system；The engine management system receives described
Computation schema is entered after target restricted speed, and waits reception instrument to indicate speed to be calculated；The combination instrument system
The instrument is calculated according to the actual vehicle speed that the electronics VSC sends when vehicle is travelled and indicates speed, and by institute
State instrument and indicate that speed is sent to the engine management system；The engine management system receives the instrument and indicates speed
The difference that the instrument indicates speed and the target restricted speed is calculated afterwards, if the difference is negative, response throttle is stepped on
The aperture of plate, if the difference is positive number, to the electromotor distributive value closed loop command signal is sent.
Further, also include the car body control module that is connected with the engine management system signal and with the car
The input module of body control module electrical connection, the car body control module receives the operation signal of the input module transmission and incites somebody to action
The operation signal is sent to the engine management system, and the operation signal is transmitted to institute by the engine management system
State combination instrument system and/or corresponding control model is entered according to the operation signal.
Further, also including wheel speed sensors, it is concurrent that the wheel speed sensors gather wheel speed signal when vehicle is travelled
The electronics VSC is given, the electronics VSC calculates currently practical car according to the wheel speed signal
Speed.
Further, the engine management system is electrically connected with the gas pedal, and the engine management system exists
The aperture of gas pedal is responded when the aperture of the gas pedal is 100%.
The present invention also provides a kind of speed method for limiting, including：
Combination instrument system receives speed and arranges after signal, in man machine interface setting and display target restricted speed, and
The target restricted speed is sent to into engine management system；
The engine management system is received and enter after the target restricted speed computation schema, and waits reception instrument to refer to
Show speed to be calculated；
The combination instrument system calculates institute when vehicle is travelled according to the actual vehicle speed that electronics VSC sends
State instrument and indicate speed, and instrument instruction speed is sent to into the engine management system；And
The engine management system receives the instrument and indicates that the instrument is calculated after speed indicates speed and the mesh
The difference of mark restricted speed, if the difference is negative, responds the aperture of gas pedal, if the difference is positive number, to
Electromotor sends distributive value closed loop command signal.
Further, the combination instrument system is received the step of speed arranges signal and included：
Input module generates speed and arranges signal and be sent to car body control module according to operation information；
Speed setting signal is sent to the engine management system by the car body control module；And
Speed setting signal is transmitted to the combination instrument system by the engine management system.
Further, the input module generates speed and arranges signal and be sent to car body control module according to operation information
Before, also include：
The input module generates speed limiting function open signal and is sent to the car body control module according to operation information；
The speed limiting function open signal is sent to the engine management system by the car body control module；
The engine management system enters speed Setting pattern according to the speed limiting function open signal, and notifies described
Combination instrument system opens the man machine interface to prepare to receive the speed configuration information.
Further, the actual car that the combination instrument system sends when vehicle is travelled according to electronics VSC
Speed is calculated the step of the instrument indicates speed to be included：
Wheel speed sensors gather wheel speed signal when vehicle is travelled and stablize wheel speed signal transmission electron vehicle body
System；
The electronics VSC calculates currently practical speed and sends actual vehicle speed according to the wheel speed signal
To the combination instrument system.
Further, also include：
Input module generates speed limiting function Restart Signal according to operation information；
The speed limiting function Restart Signal is sent to the engine management system by car body control module；
If the engine management system is currently at speed limiting function halted state, responds the speed limiting function and restart letter
Number, and computation schema is entered according to the last target restricted speed for receiving.
Further, also include：
If the aperture of the gas pedal is 100%, the aperture of the engine management system response gas pedal is entered
Enter to surmount pattern and send to the combination instrument system and surmount pattern display signal；
The combination instrument system receives the pattern that surmounts and shows after signal, in flicker of the man machine interface to set
The numerical value of frequency display target restricted speed.
In embodiments of the invention, electronics VSC, combination instrument system, engine management system and electromotor
Between form speed limit close loop control circuit, the wheel speed signal in real time obtained wheel speed sensors by electronics VSC is turned
Actual vehicle speed is changed to, and actual vehicle speed is converted to by instrument by combination instrument system and indicate speed, then by engine management
System controls electromotor and indicates speed less than target restricted speed to limit instrument according to difference checkout result, so as to carry out with
Target restricted speed is limited for the speed of max. speed, it is possible to resolve the machinery of speed limit process hinders sense problem and realizes intelligent limit
Speed, it is ensured that drive safety, user need to only arrange target restricted speed, and remaining driving experience is as good as with abnormal driving state,
Alleviate the driving burden of user.Additionally, indicating speed as control object with instrument, indicate that speed is limited less than target with instrument
Speed processed is control purpose, and by man machine interface display target restricted speed, it can be ensured that user's very first time obtains driving letter
The reliability and accuracy of breath.
Description of the drawings
Fig. 1 is the configuration diagram of Speed limiting system provided in an embodiment of the present invention.
Fig. 2 is the schematic flow sheet of speed method for limiting provided in an embodiment of the present invention.
Specific embodiment
Further to illustrate the present invention to reach technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, the specific embodiment, structure, feature and its effect to the present invention, describe in detail as after.
Fig. 1 is the configuration diagram of Speed limiting system provided in an embodiment of the present invention.As shown in figure 1, the car of the present invention
Speed limit system includes electronics VSC (Electronic Stability Program, ESP) 11, combination instrument system
System 12, engine management system (Engine Management System, EMS) 13, electromotor 14, car body control module
(Body Control Module, BCM) 15, input module 16, gas pedal 17 and wheel speed sensors (not shown).Wherein, group
Closing instrument system 12 includes man machine interface (Human Machine Interaction, HMI) 121 and instrument board (Instrument
Panel, IP), between electronics VSC 11, combination instrument system 12, engine management system 13 and electromotor 14 according to
Secondary closed loop connection, and signal connection is carried out by CAN (Controller Area Network, controller local area network),
Wheel speed sensors are connected with the signal of electronics VSC 11, and car body control module 15 connects with the signal of engine management system 13
Connect, input module 16 is electrically connected with car body control module 15, gas pedal 17 is electrically connected with engine management system 13, the electricity
Connection is, for example, rigid line connection.
Input module 16 generates operation signal and operation signal is sent to into Body Control mould according to the operation information of user
Operation signal is simultaneously sent to engine management system by block 15, the operation signal that 15 receives input module of car body control module 16 sends
Operation signal is transmitted to combination instrument system 12 and/or enters corresponding according to operation signal by system 13, engine management system 13
Control model, wherein, engine management system 13 forwarding operation signal include speed arrange signal.Combination instrument system 12
Receive speed to arrange after signal, arrange and display target restricted speed in man machine interface 121, and by the target restricted speed
Engine management system 13 is sent to, engine management system 13 is received and enter after the target restricted speed computation schema, and
Wait and receive instrument and indicate speed to be calculated, when vehicle is travelled, wheel speed sensors collection wheel speed signal and by wheel speed signal
Electron VSC 11 is sent, electronics VSC 11 calculates currently practical speed and by fact according to wheel speed signal
Border speed is sent to combination instrument system 12, and combination instrument system 12 calculates the instrument and indicates car according to the actual vehicle speed for receiving
Speed, and instrument instruction speed is sent to into engine management system 13, engine management system 13 receives the instrument and refers to
Show and the difference that the instrument indicates speed and the target restricted speed is calculated after speed, if the difference is negative, respond
The aperture of gas pedal 17, if the difference is positive number, to electromotor 14 distributive value closed loop command signal is sent, and is realized real-time
Monitor and limit instrument and indicate that speed is less than target restricted speed.
Specifically, the operation signal includes that speed limiting function open signal, speed limiting function activation signal, speed arrange letter
Number, speed limiting function halt signal, speed limiting function Restart Signal and speed limiting function shutdown signal, the speed arranges signal can be with
Improving signal or speed for speed reduces signal, and the input module 16 is, for example, to be integrated on the steering wheel of vehicle or instrument board
Button.Particularly, in the present embodiment, speed limiting function open signal, speed limiting function halt signal and speed limiting function close letter
Number speed limiting function in input module 16 can be pressed according to user and open the number of times of button and be produced, for example, be pushed button for the first time
Speed limiting function open signal is produced, push button for the second time generation speed limiting function halt signal, push button for the third time generation limit
Fast function shutdown signal.Additionally, speed arranges signal, speed limiting function activation signal, speed limiting function Restart Signal can to pass through to arrange
Different buttons is operated or equally triggered using same button.
Engine management system 13 suspends letter according to speed limiting function open signal, speed limiting function activation signal, speed limiting function
Number, speed limiting function Restart Signal and speed limiting function shutdown signal enter corresponding control model.Specifically, engine management system
System 13 receives speed limiting function open signal and enters speed limiting function opening, and on this basis, engine management system 13 is received
Speed limiting function activation signal enters speed limiting function state of activation (speed Setting pattern) and can carry out the setting of target restricted speed,
Now, engine management system 13 can forward speed to arrange signal to combination instrument system 12.At engine management system 13
When speed limiting function state of activation, suspend into speed limiting function if engine management system 13 receives speed limiting function halt signal
State, on this basis, reenters speed limiting function activation if engine management system 13 receives speed limiting function Restart Signal
State, if engine management system 13 receives speed limiting function shutdown signal speed limiting function is closed.
Further, when engine management system 13 be in speed limiting function state of activation when, such as user depth accelerator pedal
17 on earth, when accelerator open degree is reached 100% and is carried out full throttle and operate, then the response of engine management system 13 gas pedal 17
Aperture is entered to surmount pattern and send to combination instrument system 12 and surmounts pattern display signal.When user's close the throttle 17,
When instrument indicates that speed is down within target restricted speed value, speed limiting function remains valid.
In above-mentioned Speed limiting system, target is formed between engine management system 13 and combination instrument system 12 and is limited
The close loop control circuit that speed is arranged, wherein, speed configuration information is forwarded by engine management system 13, and by combining instrument
The display target restricted speed of man machine interface 121 of table system 12 and return target restricted speed value, it is ensured that signal it is accurate
Property and concordance.Further, electronics VSC 11, combination instrument system 12, engine management system 13 with start
Speed limit close loop control circuit is formed between machine 14, wherein, wheel speed sensors are obtained in real time by electronics VSC 11
Wheel speed signal be converted to actual vehicle speed, and actual vehicle speed be converted to by instrument by combination instrument system 12 indicate speed, lead to
Cross engine management system 13 to control electromotor 14 according to difference checkout result to limit instrument instruction speed less than target limit
Speed processed, so as to the machinery that can solve the problems, such as speed limit process hinders sense and realizes intelligent speed limit, user need to only arrange target limit
Speed processed, remaining driving experience is as good as with abnormal driving state.Additionally, indicating that speed, as control object, is referred to instrument with instrument
Show that speed is control purpose less than target restricted speed, and by the display target restricted speed of man machine interface 121, it is ensured that use
The family very first time obtains the reliability and accuracy of running information.
Next speed method for limiting provided in an embodiment of the present invention is described in detail with reference to Fig. 2.As shown in Fig. 2
Speed method for limiting provided in an embodiment of the present invention is mainly included the following steps that：
Step 21, engine management system opens speed limiting function and enters speed Setting pattern.
When the speed limiting function that user is pressed in input module 16 opens button, input module 16 is generated according to operation information
Speed limiting function open signal is simultaneously sent to car body control module 15, and car body control module 15 is sent to speed limiting function open signal
Engine management system 13, engine management system 13 enters speed and limits the same of mode of operation according to speed limiting function open signal
When enter speed Setting pattern, and combination of notifications instrument system 12 open man machine interface 121 with prepare receive speed arrange signal.
Now, the printed words that man machine interface 121 shows can be " LIM SET km/h ", and font color is Lycoperdon polymorphum Vitt.
Man machine interface 121 open prepare arrange speed after, user press in input module 16 speed limiting function activation by
Key, input module 16 generates speed limiting function activation signal according to operation information, and is sent to car body control module 15, Body Control
Speed limiting function activation signal is sent to engine management system 13 by module 15, and now, the printed words that man machine interface 121 shows are
" LIM 30km/h ", shows that it is 30km/h to arrange minimum speed, wherein " LIM " printed words are green, unit is in bright white with numeral
Color, points out user to carry out the setting of target restricted speed.
Step 22, the engine management system receives speed and arranges signal and speed setting signal is transmitted to into group
Close instrument system.
When the speed that user is pressed in input module 16 improves button or speed reduces button, input module 16 is according to behaviour
Make information to generate speed setting signal and be sent to car body control module 15, speed is arranged signal and sent by car body control module 15
To engine management system 13, speed setting signal is transmitted to combination instrument system 12 by engine management system 13.
Step 23, the combination instrument system receives speed and arranges after signal, in man machine interface setting and display target
Restricted speed, and the target restricted speed is sent to into the engine management system.
Speed arranges signal and can improve signal or speed reduction signal for speed, and now, user is often carried by a speed
High button, man machine interface 121 shows that speed improves 5km/h, and user often reduces button by a speed, and man machine interface 121 shows
Speed reduces 5km/h.When user after accomplishing the setting up, man machine interface 121 shows the target restricted speed of final setting, combination instrument
The target restricted speed is sent to engine management system 13 by system 12.
Step 24, the engine management system is received and enter after the target restricted speed computation schema, and waits waiting
Receive instrument to indicate speed to be calculated.
Engine management system 13 is received and enter after the target restricted speed computation schema, and the embodiment of the present invention is by meter
Calculate instrument and indicate that speed carries out speed closed loop control with the difference of target restricted speed, therefore, engine management system 13 is received
Need to wait for receiving instrument instruction speed after the target restricted speed to be calculated, above-mentioned instrument indicates that speed refers to vehicle instrument
The speed that gauge pointer is indicated on dash board.
Step 25, the actual vehicle speed that the combination instrument system sends when vehicle is travelled according to electronics VSC
Calculate and indicate that the instrument indicates speed, and instrument instruction speed is sent to into the engine management system.
Engine management system 13 receives and enter after the target restricted speed computation schema and wait reception instrument to indicate
Speed, and instrument indicates that speed is calculated when vehicle is travelled, therefore, when the control electromotor 14 of engine management system 13 will
When oil jetting combustion and driving moment advance (when vehicle is travelled), wheel speed sensors collection wheel speed signal is simultaneously sent to wheel speed signal
Electronics VSC 11, electronics VSC 11 calculates currently practical speed and by actual vehicle speed according to wheel speed signal
Combination instrument system 12 is sent to, combination instrument system 12 to be received and calculate instrument according to the actual vehicle speed after the actual vehicle speed
Speed is indicated, and instrument instruction speed is sent to into engine management system 13, meanwhile, combination instrument system 12 passes through instrument
Pointer in dash board indicates that the instrument indicates speed.Wherein, instrument is calculated by actual vehicle speed and indicates that the method for speed is this
Art personnel know, will not be described here.
Step 26, the engine management system receive the instrument indicate to be calculated after speed the instrument indicate speed with
The difference of the target restricted speed, if the difference is negative, responds the aperture of gas pedal, if the difference is for just
Number, then send distributive value closed loop command signal to electromotor.
Specifically, the instrument of engine management system 13 pairs indicates that speed carries out subtraction meter with the target restricted speed
Calculation obtains difference, if difference is negative (non-overspeed condition), engine management system 13 keeps normal gas pedal 17
Output response, if difference is positive number (overspeed condition), engine management system 13 is not responding to the aperture of gas pedal 17, and
To electromotor 14 send distributive value closed loop command signal zoomed in controlling distributive value, and real-time monitoring and limit instrument indicate speed
Less than target restricted speed.
In above-mentioned steps, by step 21-24, between engine management system 13 and combination instrument system 12 mesh is formed
The close loop control circuit that mark restricted speed is arranged.In embodiments of the present invention, speed is forwarded to set by engine management system 13
Confidence ceases, and the display target restricted speed of man machine interface 121 by combination instrument system 12 and return target restricted speed
Value, therefore, by the closed loop control between engine management system 13 and combination instrument system 12 during setting target restricted speed
Loop can ensure the accuracy and concordance of signal.Further, by step 25 and step 26, electronics VSC
11st, speed limit close loop control circuit is formed between combination instrument system 12, engine management system 13 and electromotor 14.In the present invention
In embodiment, the wheel speed signal that wheel speed sensors are obtained in real time is converted to by actual vehicle speed by electronics VSC 11,
And actual vehicle speed is converted to by instrument instruction speed by combination instrument system 12, by engine management system 13 according to difference
Checkout result controls electromotor 14 and indicates that speed is less than target restricted speed to limit instrument, it is possible to resolve the machinery of speed limit process
Hinder sense problem and realize intelligent speed limit, user need to only arrange target restricted speed, remaining driving experience and normal driving shape
State is as good as.
Incorporated by reference to Fig. 1, when engine management system 13 is in speed limiting function state of activation, such as user's depth accelerator pedal
17 on earth, when accelerator open degree is reached 100% and is carried out full throttle and operate, then the response of engine management system 13 gas pedal 17
Aperture is entered to surmount pattern and send to combination instrument system 12 and surmounts pattern display signal, now, engine management system 13
Speed limit mechanism be broken and automated to respond to increase distributive value, combination instrument system 12 receive surmount pattern show signal after,
The numerical value of flicker frequency (such as 1Hz) display target restricted speed of the man machine interface 121 to set.When user's close the throttle
17, when instrument indicates that speed is down within target restricted speed value, numeral flicker stops, and speed limiting function remains valid.
Additionally, when engine management system 13 is in speed limiting function state of activation, user presses the limit of input module 16
Fast function opens button, then input module 16 generates speed limiting function halt signal according to operation information, and car body control module 15 will
Speed limiting function halt signal is sent to after engine management system 13, the response speed limiting function halt signal of engine management system 13
Into speed limiting function halted state.Now, button is opened as user presses again speed limiting function, then input module 16 is according to operation
Information generates speed limiting function shutdown signal, and speed limiting function shutdown signal is sent to engine management system by car body control module 15
After 13, the response speed limiting function shutdown signal of engine management system 13 enters speed limiting function closed mode, and cancels man machine interface
121 display.And when user presses the limit of input module 16 when engine management system 13 is in speed limiting function halted state
Fast function restarts button, then input module 16 generates speed limiting function Restart Signal according to operation information, and car body control module 15 will
Speed limiting function Restart Signal is sent to after engine management system 13, the response speed limiting function Restart Signal of engine management system 13
Into speed limiting function state of activation, and computation schema is entered according to the last target restricted speed for receiving.
Particularly, due to the Speed limiting system and the Working mould of the existing cruise function of vehicle of the embodiment of the present invention
Formula has differences, therefore, under cruise pattern, to press speed limiting function and open button, then engine management system is moved back automatically
Go out cruise pattern into speed unrestricted model, both functional incompatibilities, opening is independent of each other.
In sum, the Speed limiting system and method in the embodiment of the present invention at least possesses following beneficial effect：
(1) closed loop control time that target restricted speed is arranged is formed between engine management system and combination instrument system
Road, by engine management system speed configuration information is forwarded, and is limited by the man machine interface display target of combination instrument system
Speed processed and return target restricted speed value, it is ensured that the accuracy and concordance of signal；
(2) electronics VSC, combination instrument system, between engine management system and electromotor formed speed limit close
Ring control loop, actual vehicle speed is converted to by electronics VSC by the wheel speed signal that wheel speed sensors are obtained in real time,
And actual vehicle speed is converted to by instrument instruction speed by combination instrument system, settled accounts according to difference by engine management system
Output control electromotor indicates speed less than target restricted speed to limit instrument, so as to carry out with target restricted speed as most
The speed of high speed is limited, it is possible to resolve the machinery of speed limit process hinders sense problem and realizes intelligent speed limit, it is ensured that drive peace
Quan Xing, user need to only arrange target restricted speed, and remaining driving experience is as good as with abnormal driving state, alleviates the driving of user
Burden；
(3) speed is indicated as control object with instrument, indicates speed less than target restricted speed to control mesh with instrument
, and by man machine interface display target restricted speed, it is ensured that user's very first time obtains the reliability of running information and accurately
Degree；
(4) when user carries out full throttle to be operated, the aperture of engine management system response gas pedal is entered and surmounts mould
Formula, when user's close the throttle, when instrument indicates that speed is down within target restricted speed value, speed limiting function remains valid,
So as to speed demand of the user under different driving states can be met, the reasonable combination of safety and practicality is realized；
(5) close loop control circuit that will be formed between engine management system and combination instrument system, and electronics vehicle body
Stabilisation systemss, combination instrument system, engine management system have in combination with speed limit close loop control circuit is formed between electromotor
Standby dynamical system and the speed limiting function of the two-way manipulation of man-machine interaction, improve drive safety.
The above, is only presently preferred embodiments of the present invention, and any pro forma restriction is not made to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member, in the range of without departing from technical solution of the present invention, when making a little change or modification using the technology contents of the disclosure above
For the Equivalent embodiments of equivalent variations, as long as being without departing from technical solution of the present invention content, according to the technical spirit pair of the present invention
Any simple modification, equivalent variations and modification that above example is made, still fall within the range of technical solution of the present invention.
Claims (10)
1. a kind of Speed limiting system, it is characterised in that including the electronics VSC, the combination instrument that are sequentially connected in a closed loop mode
System, engine management system and electromotor, the combination instrument system includes man machine interface；
The combination instrument system receives speed and arranges after signal, and in the man machine interface setting and display target car is limited
Speed, and the target restricted speed is sent to into the engine management system；The engine management system receives the mesh
Computation schema is entered after mark restricted speed, and waits reception instrument to indicate speed to be calculated；The combination instrument system exists
The instrument is calculated according to the actual vehicle speed that the electronics VSC sends when vehicle is travelled and indicates speed, and will be described
Instrument indicates that speed is sent to the engine management system；The engine management system receives the instrument and indicates after speed
The difference that the instrument indicates speed and the target restricted speed is calculated, if the difference is negative, gas pedal is responded
Aperture, if the difference be positive number, to the electromotor send distributive value closed loop command signal.
2. Speed limiting system as claimed in claim 1, it is characterised in that also include and the engine management system signal
The car body control module of connection and the input module electrically connected with the car body control module, the car body control module is received
The operation signal is simultaneously sent to the engine management system, the electromotor by the operation signal of the input module transmission
The operation signal is transmitted to the combination instrument system and/or enters corresponding control according to the operation signal by management system
Molding formula.
3. Speed limiting system as claimed in claim 1, it is characterised in that also including wheel speed sensors, the wheel speed sensing
Device gathers wheel speed signal when vehicle is travelled and is sent to the electronics VSC, the electronics VSC root
Currently practical speed is calculated according to the wheel speed signal.
4. Speed limiting system as claimed in claim 1, it is characterised in that the engine management system is stepped on the throttle
Plate is electrically connected, and the engine management system responds the aperture of gas pedal when the aperture of the gas pedal is 100%.
5. a kind of speed method for limiting, it is characterised in that include：
Combination instrument system receives speed and arranges after signal, in man machine interface setting and display target restricted speed, and by institute
State target restricted speed and be sent to engine management system；
The engine management system is received and enter after the target restricted speed computation schema, and waits reception instrument to indicate car
Speed is being calculated；
The combination instrument system calculates the instrument when vehicle is travelled according to the actual vehicle speed that electronics VSC sends
Table indicates speed, and instrument instruction speed is sent to into the engine management system；And
The engine management system receives the instrument and indicates that the instrument is calculated after speed indicates that speed is limited with the target
The difference of speed processed, if the difference is negative, responds the aperture of gas pedal, if the difference is positive number, to starting
Machine sends distributive value closed loop command signal.
6. speed method for limiting as claimed in claim 5, it is characterised in that the combination instrument system receives speed and arranges letter
Number the step of include：
Input module generates speed and arranges signal and be sent to car body control module according to operation information；
Speed setting signal is sent to the engine management system by the car body control module；And
Speed setting signal is transmitted to the combination instrument system by the engine management system.
7. speed method for limiting as claimed in claim 6, it is characterised in that the input module generates car according to operation information
Speed arranges signal and is sent to before car body control module, also includes：
The input module generates speed limiting function open signal and is sent to the car body control module according to operation information；
The speed limiting function open signal is sent to the engine management system by the car body control module；
The engine management system enters speed Setting pattern according to the speed limiting function open signal, and notifies the combination
Instrument system opens the man machine interface to prepare to receive the speed configuration information.
8. speed method for limiting as claimed in claim 5, it is characterised in that combination instrument system root when vehicle is travelled
The actual vehicle speed sent according to electronics VSC is calculated the step of the instrument indicates speed to be included：
Wheel speed sensors gather wheel speed signal when vehicle is travelled and the wheel speed signal are sent into electron VSC；
The electronics VSC calculates currently practical speed and actual vehicle speed is sent to into institute according to the wheel speed signal
State combination instrument system.
9. speed method for limiting as claimed in claim 5, it is characterised in that also include：
Input module generates speed limiting function Restart Signal according to operation information；
The speed limiting function Restart Signal is sent to the engine management system by car body control module；
If the engine management system is currently at speed limiting function halted state, the speed limiting function Restart Signal is responded,
And computation schema is entered according to the last target restricted speed for receiving.
10. speed method for limiting as claimed in claim 5, it is characterised in that also include：
If the aperture of the gas pedal is 100%, the aperture of the engine management system response gas pedal enters the excess of imports
More pattern and to the combination instrument system send surmount pattern show signal；
The combination instrument system receives the pattern that surmounts and shows after signal, in flicker frequency of the man machine interface to set
The numerical value of display target restricted speed.
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| CN201610986443.1A CN106585378A (en) | 2016-11-09 | 2016-11-09 | Vehicle speed limiting system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610986443.1A CN106585378A (en) | 2016-11-09 | 2016-11-09 | Vehicle speed limiting system and method |
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| CN106585378A true CN106585378A (en) | 2017-04-26 |
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| CN115126033A (en) * | 2022-06-23 | 2022-09-30 | 徐州徐工挖掘机械有限公司 | Walking speed limit control system and method for wheel excavator |
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